# Using chat rooms
<a name="chime-chat-room"></a>

The topics in this section explain how to create and use chat rooms. You can create a chat room whenever you need to collaborate with a group of people, usually for ongoing issues or projects. You can invite any number of users to your chat rooms, and users can join any number of chat rooms. 

**Note**  
To comply with data retention policies, Amazon Chime doesn't allow you to delete chat rooms. Instead, you hide chat rooms to remove them from the sidebar. For more information, see [Hiding a chat room from the sidebar](hide-from-sidebar.md), in this section.

Unless otherwise noted, the steps in the following sections apply to the desktop client and web app.

**Topics**
+ [Creating chat rooms](create-chat-room.md)
+ [Joining a chat room](join-chat.md)
+ [Sharing chat room URLs (web app only)](share-chat-url.md)
+ [Sending messages in chat rooms](chat-messages.md)
+ [Calling the members of a chat room](im-chat-room.md)
+ [Viewing chat room details.](chat-room-details.md)
+ [Changing a chat room's notification settings](chat-notification-settings.md)
+ [Hiding a chat room from the sidebar](hide-from-sidebar.md)
+ [Deleting chat rooms](delete-chat-room.md)
+ [Leaving a chat room](leave-chat.md)
+ [Sending @ notifications](at-mention.md)